<!-- 发布页面 -->
<template>
  <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>
    <el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
      <el-step title="填写课程基本信息"/>
      <el-step title="创建课程大纲"/>
      <el-step title="发布课程"/>
    </el-steps>
    <!-- 显示确认信息 -->
    <div class="ccInfo">
      <img :src="coursePublish.cover">
      <div class="main">
        <h2>{{ coursePublish.title }}</h2>
        <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
        <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{ coursePublish.subjectLevelTwo }}</span></p>
        <p>课程讲师：{{ coursePublish.teacherName }}</p>
        <h3 class="red">￥{{ coursePublish.price }}</h3>
      </div>
    </div>
    <div>
      <el-button @click="previous">返回修改</el-button>
      <el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
    </div>
  </div>
</template>

<script>
import course from '@/api/edu/course'

    export default {
        
        data(){
            return{
                // 保存按钮是否禁用
                saveBtnDisabled:false,
                // 我们的课程id
                courseId:'',
                // 最终发布回显的数据
                coursePublish:{},
            }
        },
        created() {
          // 获取路由中的id
          // 获取到路由里面的id值
          if(this.$route.params && this.$route.params.id){
              this.courseId = this.$route.params.id
              // 调用接口中的方法根据课程id进行查询
              this.getPublishInfo()
          }

          
            
        },
        methods:{
            // 根据课程id进行查询
            getPublishInfo(){
              course.getPublishCourseInfo(this.courseId).then(resp => {
                this.coursePublish = resp.data.publishCourseInfo
              })
            },


            // 上一步
            previous(){
                // 跳转到第二步
                this.$router.push({path:'/course/chapter/' + this.courseId})
            },

            //最终提交
            publish(){
              // 提示信息
              this.$confirm('确定发布课程？是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
              }).then(() => {
                 // 调用修改状态的接口
                // 进行发布
                course.publicCourse(this.courseId).then(resp => {
                    this.$message({
                      type: 'success',
                      message: '课程发布成功!'
                    })

                    // 跳转到我们的列表里面去
                    this.$router.push({path:'/course/list'})
                })
                
            })
               

                
               
            }
        }
    
    }
</script>
<style scoped>
  .ccInfo {
      background: #f5f5f5;
      padding: 20px;
      overflow: hidden;
      border: 1px dashed #DDD;
      margin-bottom: 40px;
      position: relative;
  }
  .ccInfo img {
      background: #d6d6d6;
      width: 500px;
      height: 278px;
      display: block;
      float: left;
      border: none;
  }
  .ccInfo .main {
      margin-left: 520px;
  }
  .ccInfo .main h2 {
      font-size: 28px;
      margin-bottom: 30px;
      line-height: 1;
      font-weight: normal;
  }
  .ccInfo .main p {
      margin-bottom: 10px;
      word-wrap: break-word;
      line-height: 24px;
      max-height: 48px;
      overflow: hidden;
  }
  .ccInfo .main p {
      margin-bottom: 10px;
      word-wrap: break-word;
      line-height: 24px;
      max-height: 48px;
      overflow: hidden;
  }
  .ccInfo .main h3 {
      left: 540px;
      bottom: 20px;
      line-height: 1;
      font-size: 28px;
      color: #d32f24;
      font-weight: normal;
      position: absolute;
  }
  </style>